Update client/functions/updatePlayerRadarMarkers.sqf

hintSilent parseText format ["<t size='2' color='#E01B1B'>%1</t><br/><br/>%2.","ACHTUNG!","Enemy player detected the radar proximity!"];
changed to:
hintSilent parseText format ["<t size='2' color='#E01B1B'>%1</t><br/><br/>%2.","ATTENTION!","Enemy player detected by radar!"];

hintSilent parseText format ["<t size='2' color='#E01B1B'>%1</t><br/><br/>%2.","ACHTUNG!","Enemy and Friendly players detected the radar proximity!"];
changed to:
hintSilent parseText format ["<t size='2' color='#E01B1B'>%1</t><br/><br/>%2.","ATTENTION!","Enemy and Friendly players detected by radar!"];

Remove German word and made the description make more sense.